The game is a sequel to Trauma Center: Under the Knife. The character designs of Under the Knife 2 were provided by Masayuki Doi, who worked on Trauma. VGMdb provides media, tracklist and artist information for video game soundtracks and anime music. SuperSweep has just released the soundtrack to Trauma Center: Under the Knife as well as Trauma Center: Under the Knife 2, rounding out the soundtracks for. Favorite soundtrack ever? New soundtrack coming out? ExtendedTrauma Center: Under The Knife 2『OST』- Active Doctors - [Extended].